CVE-2026-103391EUVD-2026-112226
Session Smart Router: An attacker-controlled TCP option causes an out-of-bounds write when using the TCP proxy feature
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 7.0.5, 7.1.7, 7.2.3
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Juniper Networks Session Smart Router is affected when its TCP proxy/optimization feature is in use. An attacker can send a specially crafted TCP packet through the device to corrupt forwarded packet data and potentially crash the data plane.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
An Out-of-bounds Write vulnerability in the SSR TCP proxy/optimization path in Juniper Networks Session Smart Router allows an attacker to corrupt forwarded packet data and potentially cause a data-plane crash via a transit TCP packet with a crafted TCP option length.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- Juniper Networks Session Smart Router
fixed in 7.0.5; From 7.1.0 · fixed in 7.1.7; From 7.2.0 · fixed in 7.2.3